Wheel for road-vehicles.



WEEEL EUR MAD VERNE. APPLmATwH Mmm 0G12 23, 1911.

VALTER WRIGHT, OF COVENTRY, ENGLAND, ASSIGNOR TO THE EUNLGP PNEUMELTII TYRE COMPANY, LIMITED, OF GOVENTRY,

WHEEL FOR ROAD-VEHICLES.

Specification of Letters Patent.

Application filed Octobe1'23, 191.1. Serial No. 656,290.

To LH '1e/win z' may concern.'

lle it known that l., YVAiJrnii lli/iniciar, a, subject ot the King of Great Britain, residing; at llceliniont.y Stoke lark, Coventry, in the county ot lai-wick, England, have iiivented certain new and useful linproveinents iii or Relating' to the Vlflheels of Road- Vehicles, of which the following is a speciiication.

This invention relates to road vehicle wheels particularly those of the kind whereiii an outer hub or hub shell carrying the spokes and riiii is readily detachable from an inner hub which is tree to rotate on or with the axle, a spring` controlled locking device being provided for normally retaining the outer hub and wheel in position on the inner hub.

According to this invl .ition the locking device comprises a spi-ing controlled push piece in the forni of a Sliding barrel iiiovable axiallyv in the inner hub or an extension thereo'l andr norniall)v engaging with a retaining nieiiiber or nut on the inner hub or an evtension thereof. the said push piece being),- so disposed with relation to an opening or'openinpjs iii the nut that it can be forced inward :troni its noriiial position yto diseiigageor unlock it from the nut so that the latter can be rotated for detaching theI outer hub and wheel troni the inner hub. The

'said push piece and the nut may be provided with teeth or projections or iiiay be otherwise formed to eri-able them to engage together when the push piece occupies its out.-

' ward or iiorinal position under the influence of its spring, and to become disengaged when the push piece is forced inward. This disengagement may be elfected by a contrivance forming:part of a Spanner or siinilar tool for rotating the nut as aforesaid. rlhe said Spanner when in use may be adapted vto he locked in position on the nut and the contrivance carried by it for actuating the push piece inaylta'lce the foi-1n of a screwtlireaded niemberlniouiited in a threaded part or bush carried by the Spanner, the said screw threaded ineinlier when angular-ly dis: placed forcing the push piece inward against the pressure ,of its spring to .disengagethe push piece from the nut. When the outer hub has been secured .in position on the inner hub, the aforesaid cani or serewthreaded ineniher is released er nioved troni the posi tion in which it holds the push piece inward or unlocked, to enable the push piece to nieve outward by the action of its spring and antoniatically resunie its locking position in relaf tion to the nut.

In order that the said invention may be clearly understood and readily carried into effect the saine will be described incre fully 'with reference to the accompanying drawings in which z v Figure l is a longitudinal sectione and Fig. 2 an end elevation oit a wire wheel hule provided with the in'iproved locking device which is represented in the locked position.

Figs. 3 and 4f are longitudinal sections sliowp ing the lochinp device on a larger scale in the position it occupies when locked and unlocked. ,ln Fig. l the Spanner is shown in dot and dash lines applied to the hub and acting` to unlock the said device.

' ln all these figures like letters ont reference indicate siinilar parts.

a is the outer hub or hub shell; Z) the inner hub, and d the push piece or locking ineinM ber adapted to engage with Vthe rotary nut c and prevent the latter from beingl rotated. The outer hub is ornied with the usual iii nei' peripheral teeth or serrations a for en gaging with outer peripheral teeth or serrations b on the inner hub to etlect a driving connection between the inner and outer hubs.

In the example shown, the rotary nut c is carried by 'the outer hub a by nieans of a shoulder or flange c and a detachable collar e2 on the nut, which together form a periph eral groove into which tits the flanged portion L2 of the outer hub a. rlhe nut/c is internally threaded to engage with'a threaded hub and this portion Z1? is adapted to receive the push piece or locking meinber d which,V

in the example shown is in the jforni of a slidingr barrel cl provided with outer pe ripheral teeth (Z2 for engaging'with inner peripheral teeth c3 at the outer end er face of the nut, the said teeth being preferably or V-shape as shown in Fig. Q, and normally held in engagement by a spring or springs g tending to force the push piece outward (see Fig. againsta shoulder or flange f' torn'iing part of fretaining bolt f carried by a member c which in Figs. l to fl is pro vided' with an angular groove c for the reception et two or more studs e e projecting lOt'i between the block and the boss `nal peripheral teeth or keys d3 for engaging with internal peripheral teeth or keyways '65 on the portion '72? of the inner huh to prevent relative rotation between the 'inner hub and the push piece d. An ordi*- nary grease plug` f2 is screwed into the end of a hole f in the retaining bolt f.

The `spring `or springs g normally retain the teeth dvo the push piece d in engagement with the teeth e3 of the nut c, and as the push piece Z is held against rotation relatively tortille inner hub the nut, o is also looked against rotation and consequently the outer hub a and Wheel is se curely locked in position on the inner hub l).

For the purpose of enabling the nut c to he rotated to unseren' the outer hub from the threaded portion b2 of the inner hub o, spanner it illustrated in dotted lines inFig. 4 may be employed, the said spanner having a contrivance which can he actuated to cause the teeth d3 ot the push piece to become disengaged from the teeth e3 of the nut. The spanner may be furnished. with two spring pressed projeotions a' adapted to engage with the annular groove c4 in the nut 0 to lock the Spanner to the nut. rl`heprojeotions z are arranged diametrically opposite each other and are each provided with finger pieces such as t" by means of which the said projections can be retracted to enable the Spanner to be fitted to the nut. The spanner is formed with a liridge piece which at its center is screw threaded to constitute a fixed nut for a threaded member or boss 47" forming part of a handle jg for rotating the said boss. -Extending loosely through the member or boss j is a short stem jt held in `place by a nut j and having 'its inner end a cup shaped block js which is adapted to bear against the outer 'face otl the end disk cZ ot the push piece al. Thus the block does Anot rotate with the screw threaded boss j but moves in an axial direction `,to Atorce the said end diskud outlet engagement with the teeth C3 of the nut o; A ring of balls j@ is preferably interposed to take up is rotated, end disk d the end thrust when the boss j and the block bears against the of the push piece.

In Fig. 4 the spanner is shown by dot and lash lines in position on the nut c, the spring projections z' being in engagement with the annular groove oA1 on the nut and the handle ,7'2 in a positoin for forcing the block j and consequently the push piece d vinto the unlocked or disengaged position, Vthus leaving the nut o free to be rotated to f4 remove the outer hub (Z and wheel. The ob- )ect .in making the block of cup shaped formation is to prevent it from bearing against stationaryn'etaining holt f on which the push piece slides.

ln attaching a wheel,l the cont-rivanceon the Spanner is set into its operative position to retain the push piece (Z in the unlocked position until the outer hub is properly secured in position on the inner hub 2'.. e. until the screw threads o1" the nut o and the inner hub portion b2 are completely engaged. The pressure of the contrivance on the spans ner upon the push piece (Z is then removed by actuating the handle 7'2 or It" as `the case may be whereupon the push piece will be forced by its spring into engagement with the nut thus looking the outer hub and Wheel securely in place upon the inner huh.

The Spanner herein illustrated andl dc-l scribed is notclaimed in this application` but forms the subject matter of a divisional application.

Instead of employing peripheral teeth on the push piece (Z, .tace teeth may be provided to engagewith corresponding face teeth on the nut. For this purpose the outer face ol the nut may be provided with an internal flange on the inner side of which the said face teeth are formed and a portion of the push piece d mayproject through, or lie ad'- jacent to the oentral hole in the nut flange,

yso'that the push piece may be moved axially against its spring to disengage or unlock the said teeth to enable the nut to be rotated as aforesaid. l

lll/That Il claim and desire to secure by Letters Patent of the United States is:-

l. In a detachable wheel an outer hub carrying the spokes and rim, an inner hub adapted to receive said outer hub and terminating in a tubular portion exteriorly screw-threaded, an annular retaining nut engaging said'sorew threads, a sliding baritted within the tubular extremity of the inner hub and carrying on its head a projecting locking member adapted to engage the nut and lock'it against rotation, a

-sprmg housed within the barrel and adapted to `force it outwardly into locking position, and means for`limiting the outward movement of the barrel; substantially as described. f 1

2. In av detachable wlieel, an 'outer hub carrying the spokes and rim, an inner'hulo adapted to receive said outer huh and terminating in a tubular portion exteriorly screw-threaded, an*` annular retaining nut whose outer face is provided with an opening, said nut engaging said screw-threads, a sliding barrel tted within the tubular eX- tremity of the inner hub and carrying on its head a projecting lookingmember adapted to lie within the opening in the outer face of the nut, the peripheries of the said member land of the said opening being shaped to lock the nut against rotation, a spring ilol Cir

housed Within the barrel and adapt-ed to fonce it outwardly into looking position, and means: for linfntinn` the outward movement of the barrel; substantially as described.

3. ln a detachable Wlieel, en outer` hub.

carrying the spokes and rim, en inner hub adapted to receive seid outer hub and terminating in a tubular portion exteirioily sereiwthreaded and having e' series of lockv inf; teeth on its interior periphery, an annular retaining nut whose outer face is provided with opening', Said nut engaging seid screw tln'eads, e sliding; barrel litted within tlie Vtubular extremity of the inner liub and having' nerii'ilieral teeth meshingr with the teeth on tlie interior of the tubulzu.' lull.) portion, the said barrel carrying on its liezid zi. projecting lockingy member adapted to lie Within the opening in the out/e1' tace of tlie nut, the pei'inlieries of the seid uiemliei' and of the Said openingy being elinned to lock the nut against rotation, :i Spring' housed 'within tlie barrel and adepted to 'torce it outwardly into locking,Y `posimovement of the barrel; substantially as described.

4. In e. detachable Wheel, an outer linloV :eri'ying the spokes and rim, :in inner nnb terminating in n tubular portion exterioriy screw threaded, an annular' retaining nut engaging' seidv screw threads, e sliding; berrel fitted Within the tubular eXtYemit-7 of the inneil hub und Carrying on its heed a projecting' looking' member adapted 'to engage the nut and look it against rotation, e Spring" housed 'within the barrel and adapted to force it outwardly into looking' position, ineens for limiting' tlle 'outward movement of the barrel, :ind :i grease nlugin tlie (tenter of tlie lxm'i'el hond; substantially :is described.

In testimony \\'liei'eol'f l aiiix my signature in presence of two Witnesses.

VALTER WRiGll W'itnesses:

F. C. BAisLnY, H. P. VENN.

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